An A+ Certified developer is a professional who has gained certification from CompTIA, validating their proficiency in IT operational roles. They troubleshoot and problem-solve across a wide range of devices and operating systems. Their responsibilities include managing, maintaining, troubleshooting, installing and configuring basic network infrastructure, understanding operating systems, mobile devices, and security. They also have the ability to connect users to the data they need to perform their jobs irrespective of the devices being used. They are often the first point of contact for IT support within an organization, providing technical assistance to users.